maride/php-parser
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parse isset

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vadim 2017-11-30 20:45:54 +02:00
parent 9418775874
commit 9edffc663e
2 changed files with 1732 additions and 1681 deletions
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3381
parser.go
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32
parser.y
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@ -305,6 +305,9 @@ func (n node) attribute(key string, value string) node {
%type <node> ctor_arguments
%type <node> class_name_reference
%type <node> new_variable
%type <node> internal_functions_in_yacc
%type <node> isset_variables
%type <node> isset_variable
%%
@ -1010,12 +1013,7 @@ expr_without_variable:
| expr '?' expr ':' expr { $$ = Node("Ternary").append($1).append($3).append($5); }
| expr '?' ':' expr { $$ = Node("Ternary").append($1).append($4); }
| expr T_COALESCE expr { $$ = Node("Coalesce").append($1).append($3); }
| T_EMPTY '(' expr ')' { $$ = Node("Empty").append($3); }
| T_INCLUDE expr { $$ = Node("Include").append($2); }
| T_INCLUDE_ONCE expr { $$ = Node("IncludeOnce").append($2); }
| T_EVAL '(' expr ')' { $$ = Node("Eval").append($3); }
| T_REQUIRE expr { $$ = Node("Require").append($2); }
| T_REQUIRE_ONCE expr { $$ = Node("RequireOnce").append($2); }
| internal_functions_in_yacc { $$ = $1}
| T_INT_CAST expr { $$ = Node("CastInt").append($2); }
| T_DOUBLE_CAST expr { $$ = Node("CastDouble").append($2); }
| T_STRING_CAST expr { $$ = Node("CastString").append($2); }
@ -1076,6 +1074,25 @@ encaps_var_offset:
| T_VARIABLE { $$ = Node("OffsetVariable").attribute("value", $1) }
;
internal_functions_in_yacc:
T_ISSET '(' isset_variables possible_comma ')' { $$ = $3; }
| T_EMPTY '(' expr ')' { $$ = Node("Empty").append($3); }
| T_INCLUDE expr { $$ = Node("Include").append($2); }
| T_INCLUDE_ONCE expr { $$ = Node("IncludeOnce").append($2); }
| T_EVAL '(' expr ')' { $$ = Node("Eval").append($3); }
| T_REQUIRE expr { $$ = Node("Require").append($2); }
| T_REQUIRE_ONCE expr { $$ = Node("RequireOnce").append($2); }
;
isset_variables:
isset_variable { $$ = $1; }
| isset_variables ',' isset_variable { $$ = Node("AndIsset").append($1).append($3); }
;
isset_variable:
expr { $$ = Node("Isset").append($1) }
;
constant:
name { $$ = Node("Const").append($1) }
| class_name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = Node("Const").append($1).append($3) }
@ -1203,8 +1220,7 @@ new_variable:
%%
const src = `<?php
$a instanceof \Test;
new $Test[]();
isset($a, $b);
`
func main() {